Every season we have (sort of) got a surprise fourth episode… Think about it. Season one we got the Unaired pilot. Season two we got Many Happy Returns. Season three we got The Abominable Bride… So why should series four be any different?
I’ve just received the same response as most (all?) of you have and I’d say it’s time to get back at them with the infinite number of romantic tropes and all the subtext and the text that BBC Sherlock has used since the unaired pilot.